#include "freespace2/freespace.h"
#include "mission/missionparse.h"
#include "model/model.h"
#include "network/multi.h"
#include "object/objectshield.h"
#include "render/3d.h"
#include "ship/ship.h"
#include "species_defs/species_defs.h"

Classes
struct	gshield_tri

struct	shield_hit

struct	shield_point

Macros
#define	SHIELD_HIT_SCALE 0.15f

#define	MAX_TRIS_PER_HIT 40

#define	MAX_SHIELD_HITS 20

#define	MAX_SHIELD_TRI_BUFFER (MAX_SHIELD_HITS*MAX_TRIS_PER_HIT)

#define	SHIELD_HIT_DURATION (3*F1_0/4)

#define	SH_UNUSED -1

#define	SH_TYPE_1 1

#define	UV_MAX (63.95f/64.0f)

#define	MAX_SHIELD_POINTS 100

Typedefs
typedef struct gshield_tri	gshield_tri

typedef struct shield_hit	shield_hit

typedef struct shield_point	shield_point

Functions
void	create_shield_from_triangle (int trinum, matrix orient, shield_info shieldp, vec3d tcp, vec3d centerp, float radius, vec3d rvec, vec3d uvec)

void	load_shield_hit_bitmap ()

void	shield_hit_page_in ()

void	shield_hit_init ()

void	release_shield_hit_bitmap ()

void	shield_hit_close ()

void	shield_frame_init ()

void	create_low_detail_poly (int global_index, vec3d tcp, vec3d rightv, vec3d *upv)

void	rs_compute_uvs (shield_tri stp, shield_vertex verts, vec3d tcp, float radius, vec3d rightv, vec3d *upv)

void	free_global_tri_records (int shnum)

void	render_low_detail_shield_bitmap (gshield_tri trip, matrix orient, vec3d *pos, ubyte r, ubyte g, ubyte b)

void	render_shield_triangle (gshield_tri trip, matrix orient, vec3d *pos, ubyte r, ubyte g, ubyte b)

void	render_shield (int shield_num)

void	render_shields ()

void	create_tris_containing (vec3d vp, matrix orient, shield_info shieldp, vec3d tcp, vec3d centerp, float radius, vec3d rvec, vec3d *uvec)

void	visit_children (int trinum, int vertex_index, matrix orient, shield_info shieldp, vec3d tcp, vec3d centerp, float radius, vec3d rvec, vec3d uvec)

int	get_free_global_shield_index ()

int	get_global_shield_tri ()

void	copy_shield_to_globals (int objnum, shield_info *shieldp)

float	apply_damage_to_shield (object *objp, int quadrant, float damage)

void	create_shield_low_detail (int objnum, int model_num, matrix orient, vec3d centerp, vec3d tcp, int tr0, shield_info shieldp)

void	create_shield_explosion (int objnum, int model_num, matrix orient, vec3d centerp, vec3d *tcp, int tr0)

void	add_shield_point (int objnum, int tri_num, vec3d *hit_pos)

void	add_shield_point_multi (int objnum, int tri_num, vec3d *hit_pos)

void	shield_point_multi_setup ()

void	create_shield_explosion_all (object *objp)

void	ship_draw_shield (object *objp)

int	ship_is_shield_up (object *obj, int quadrant)

int	get_quadrant (vec3d hit_pnt, object shipobjp)

Variables
int	Show_shield_mesh = 0

float	Shield_scale = SHIELD_HIT_SCALE

shield_point	Shield_points [MAX_SHIELD_POINTS]

int	Num_shield_points

int	Num_multi_shield_points

gshield_tri	Global_tris [MAX_SHIELD_TRI_BUFFER]

int	Num_tris

shield_hit	Shield_hits [MAX_SHIELD_HITS]

int	Shield_bitmaps_loaded = 0

int	Poly_count = 0

int	Cmdline_nohtl

int	Gi_max = 0

int	Break_value = -1

Macro Definition Documentation

#define MAX_SHIELD_HITS 20

Definition at line 32 of file shield.cpp.

#define MAX_SHIELD_POINTS 100

Definition at line 75 of file shield.cpp.

#define MAX_SHIELD_TRI_BUFFER (MAX_SHIELD_HITS*MAX_TRIS_PER_HIT)

Definition at line 33 of file shield.cpp.

#define MAX_TRIS_PER_HIT 40

Definition at line 31 of file shield.cpp.

#define SH_TYPE_1 1

Definition at line 37 of file shield.cpp.

#define SH_UNUSED -1

Definition at line 36 of file shield.cpp.

#define SHIELD_HIT_DURATION (3*F1_0/4)

Definition at line 34 of file shield.cpp.

#define SHIELD_HIT_SCALE 0.15f

Definition at line 30 of file shield.cpp.

#define UV_MAX (63.95f/64.0f)

Definition at line 39 of file shield.cpp.

Typedef Documentation

typedef struct gshield_tri gshield_tri

Structure which mimics the shield_tri structure in model.h.

Since the global shield triangle array needs the vertex information, we will acutally store the information in this structure instead of the indices into the vertex list

typedef struct shield_hit shield_hit

typedef struct shield_point shield_point

Stores point at which shield was hit. Gets processed in frame interval.

Function Documentation

void add_shield_point	(	int	objnum,
		int	tri_num,
		vec3d *	hit_pos
	)

Add data for a shield hit.

Definition at line 779 of file shield.cpp.

void add_shield_point_multi	(	int	objnum,
		int	tri_num,
		vec3d *	hit_pos
	)

Definition at line 802 of file shield.cpp.

float apply_damage_to_shield	(	object *	objp,
		int	quadrant,
		float	damage
	)

Return absolute amount of damage not applied.

This is the version that works on a quadrant basis.

Definition at line 644 of file shield.cpp.

void copy_shield_to_globals	(	int	objnum,
		shield_info *	shieldp
	)

Copy information from Current_tris to Global_tris, stuffing information in a slot in Shield_hits.

The Global_tris array is not a shield_tri structure. We need to store vertex information in the global array since the vertex list will not be available to us when we actually use the array.

Definition at line 585 of file shield.cpp.

void create_low_detail_poly	(	int	global_index,
		vec3d *	tcp,
		vec3d *	rightv,
		vec3d *	upv
	)

Definition at line 179 of file shield.cpp.

void create_shield_explosion	(	int	objnum,
		int	model_num,
		matrix *	orient,
		vec3d *	centerp,
		vec3d *	tcp,
		int	tr0
	)

Definition at line 731 of file shield.cpp.

void create_shield_explosion_all ( object * objp )

Create all the shield explosions that occurred on object *objp this frame.

Definition at line 838 of file shield.cpp.

void create_shield_from_triangle	(	int	trinum,
		matrix *	orient,
		shield_info *	shieldp,
		vec3d *	tcp,
		vec3d *	centerp,
		float	radius,
		vec3d *	rvec,
		vec3d *	uvec
	)

Definition at line 566 of file shield.cpp.

void create_shield_low_detail	(	int	objnum,
		int	model_num,
		matrix *	orient,
		vec3d *	centerp,
		vec3d *	tcp,
		int	tr0,
		shield_info *	shieldp
	)

This function needs to be called by big ships which have shields. It should be able to be modified to deal with the large polygons we use for their shield meshes - unknownplayer

At lower detail levels, shield hit effects are a single texture, applied to one enlarged triangle.

Definition at line 679 of file shield.cpp.

void create_tris_containing	(	vec3d *	vp,
		matrix *	orient,
		shield_info *	shieldp,
		vec3d *	tcp,
		vec3d *	centerp,
		float	radius,
		vec3d *	rvec,
		vec3d *	uvec
	)

Definition at line 501 of file shield.cpp.

void free_global_tri_records ( int shnum )

Free records in Global_tris previously used by Shield_hits[shnum].tri_list

Definition at line 243 of file shield.cpp.

int get_free_global_shield_index ( )

Definition at line 533 of file shield.cpp.

int get_global_shield_tri ( )

Definition at line 548 of file shield.cpp.

int get_quadrant	(	vec3d *	hit_pnt,
		object *	shipobjp
	)

Definition at line 988 of file shield.cpp.

void load_shield_hit_bitmap ( )

Definition at line 90 of file shield.cpp.

void release_shield_hit_bitmap ( )

Release the storage allocated to store the shield effect.

This doesn't need to do anything; the bitmap manager will release everything.

Definition at line 155 of file shield.cpp.

void render_low_detail_shield_bitmap	(	gshield_tri *	trip,
		matrix *	orient,
		vec3d *	pos,
		ubyte	r,
		ubyte	g,
		ubyte	b
	)

Definition at line 256 of file shield.cpp.

void render_shield ( int shield_num )

Render a shield mesh in the global array Shield_hits[]

Definition at line 381 of file shield.cpp.

void render_shield_triangle	(	gshield_tri *	trip,
		matrix *	orient,
		vec3d *	pos,
		ubyte	r,
		ubyte	g,
		ubyte	b
	)

Render one triangle of a shield hit effect on one ship. Each frame, the triangle needs to be rotated into global coords.

Parameters

trip	pointer to triangle in global array
orient	orientation of object shield is associated with
pos	center point of object
r	Red colour
g	Green colour
b	Blue colour

Definition at line 318 of file shield.cpp.

void render_shields ( )

Render all the shield hits in the global array Shield_hits[]

This is a temporary function. Shield hit rendering will at least have to occur with the ship, perhaps even internal to the ship.

Definition at line 486 of file shield.cpp.

void rs_compute_uvs	(	shield_tri *	stp,
		shield_vertex *	verts,
		vec3d *	tcp,
		float	radius,
		vec3d *	rightv,
		vec3d *	upv
	)

Given a shield triangle, compute the uv coordinates at its vertices given the center point of the explosion texture, distance to center of shield and right and up vectors.

For small distances (relative to radius), coordinates can be computed using distance. For larger values, should compute angle.

Definition at line 221 of file shield.cpp.

void shield_frame_init ( )

Definition at line 173 of file shield.cpp.

void shield_hit_close ( )

De-initialize the shield hit system. Called from game_level_close().

Todo:: We should probably not bother releasing the shield hit bitmaps every level.

Definition at line 168 of file shield.cpp.

void shield_hit_init ( )

Initialize shield hit system.

Called from game_level_init()

Definition at line 131 of file shield.cpp.

void shield_hit_page_in ( )

Definition at line 109 of file shield.cpp.

void shield_point_multi_setup ( )

Sets up the shield point hit information for multiplayer clients

Definition at line 817 of file shield.cpp.

void ship_draw_shield ( object * objp )

Draw the whole shield as a wireframe mesh, not looking at the current integrity.

Definition at line 879 of file shield.cpp.

int ship_is_shield_up	(	object *	obj,
		int	quadrant
	)

Returns true if the shield presents any opposition to something trying to force through it.

Returns: If quadrant is -1, looks at entire shield, otherwise just one quadrant

Definition at line 964 of file shield.cpp.

void visit_children	(	int	trinum,
		int	vertex_index,
		matrix *	orient,
		shield_info *	shieldp,
		vec3d *	tcp,
		vec3d *	centerp,
		float	radius,
		vec3d *	rvec,
		vec3d *	uvec
	)

Definition at line 521 of file shield.cpp.

Variable Documentation

int Break_value = -1

Definition at line 873 of file shield.cpp.

int Cmdline_nohtl

Definition at line 438 of file cmdline.cpp.

int Gi_max = 0

Definition at line 531 of file shield.cpp.

gshield_tri Global_tris[MAX_SHIELD_TRI_BUFFER]

Definition at line 80 of file shield.cpp.

int Num_multi_shield_points

Definition at line 78 of file shield.cpp.

int Num_shield_points

Definition at line 77 of file shield.cpp.

int Num_tris

Definition at line 81 of file shield.cpp.

int Poly_count = 0

Definition at line 161 of file shield.cpp.

int Shield_bitmaps_loaded = 0

Definition at line 85 of file shield.cpp.

shield_hit Shield_hits[MAX_SHIELD_HITS]

Definition at line 83 of file shield.cpp.

shield_point Shield_points[MAX_SHIELD_POINTS]

Definition at line 76 of file shield.cpp.

float Shield_scale = SHIELD_HIT_SCALE

Definition at line 41 of file shield.cpp.

int Show_shield_mesh = 0

Definition at line 27 of file shield.cpp.

Classes

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation